add note that enabling alt input will also enable Interactive Highlights by default, see https://github.com/phetsims/joist/issues/858
add note that enabling alt input will also enable Interactive Highlights by default, see https://github.com/phetsims/joist/issues/858

phetsims/phet-info,phetsims/phet-info,phetsims/phet-info,phetsims/phet-info